A rare tawny port known as ‘Scion’ is on the market for $3,500. The port has an interesting history. Two casks of this wine were kept by a distinguished Douro family as a treasured heirloom. The family stubbornly refused to part with this treasure over the generations. The wine had been stored in a remote wine lodge. However with the death of the last surviving member of the family, the heirs decided to place the wine on sale.